In triangle ABC, BN is the bisector and AN = 7.5cm NC = 4.5cm BC = 9cm Find AB.
| September 7, 2021 | education
By the property of the bisector of a triangle, it divides the side of the triangle into segments, the lengths of which are proportional to the lengths of the adjacent sides of the triangle.
AN / AB = CN / BC.
7.5 / AB = 4.5 / 9.
AB = 7.5 * 9 / 4.5.
AB = 15 cm.
Answer: The length of the side AB = 15 cm.
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